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Adam Strzelecki to SDL
Since current DirectFB implementation is incomplete for YUV surfaces (actually causes segmentation faults when trying Lock and use YUV planar textures) I decided to fix it a bit.
Here's a patch that should make DirectFB properly support YUV both packed and planar (3 planes).
(1) Removed SDL_BYTESPERPIXEL at all in favor of DFB_BYTES_PER_PIXEL(SDLToDFBPixelFormat(fmt)) which does return always proper BPP for YUVs too, coz SDL_BYTESPERPIXEL returns incorrect values for FOURCCs
(2) Fixed data->pixels allocation for planar YUVs in CreateTexture, it should allocate 150% more space
(3) Copy other planes for planar YUVs in UpdateTexture
(4) Moved checking if format is supported at all with DirectFB on CreateTexture at the beginning of the code
Waiting for comments,
--
Adam Strzelecki | nanoant.com
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 04 Oct 2009 04:03:37 +0000 |
| parents | 3e3724fb829e |
| children | cf7976fd3258 |
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These are test programs for the SDL library: checkkeys Watch the key events to check the keyboard graywin Display a gray gradient and center mouse on spacebar loopwave Audio test -- loop playing a WAV file testalpha Display an alpha faded icon -- paint with mouse testaudioinfo Lists audio device capabilities testbitmap Test displaying 1-bit bitmaps testblitspeed Tests performance of SDL's blitters and converters. testcdrom Sample audio CD control program testcursor Tests custom mouse cursor testdyngl Tests dynamically loading OpenGL library testerror Tests multi-threaded error handling testfile Tests RWops layer testgamma Tests video device gamma ramp testgl A very simple example of using OpenGL with SDL testgl2 An even simpler example using the SDL 1.3 API testhread Hacked up test of multi-threading testiconv Tests international string conversion testjoystick List joysticks and watch joystick events testkeys List the available keyboard keys testloadso Tests the loadable library layer testlock Hacked up test of multi-threading and locking testmultiaudio Tests using several audio devices testoverlay Tests the software/hardware overlay functionality. testoverlay2 Tests the overlay flickering/scaling during playback. testpalette Tests palette color cycling testplatform Tests types, endianness and cpu capabilities testsem Tests SDL's semaphore implementation testsprite Example of fast sprite movement on the screen testsprite2 Improved version of testsprite testtimer Test the timer facilities testver Check the version and dynamic loading and endianness testvidinfo Show the pixel format of the display and perfom the benchmark testwin Display a BMP image at various depths testwm Test window manager -- title, icon, events testwm2 Improved version of testwm threadwin Test multi-threaded event handling torturethread Simple test for thread creation/destruction